[Python-Dev] __eq__ vs hash
p.f.moore at gmail.com
Fri Apr 4 18:30:57 CEST 2008
On 04/04/2008, Guido van Rossum <guido at python.org> wrote:
> > It doesn't use __hash__ at all. It uses __eq__ in two files, three total uses:
> > http://hg.intevation.org/mercurial/crew/file/6c4e12682fb9/mercurial/commands.py
> > http://hg.intevation.org/mercurial/crew/file/6c4e12682fb9/mercurial/context.py
> If it breaks, perhaps the instances of one of those classes that
> define __eq__ but not __hash__ are used in a set or as dict keys?
> That's the difference between 2.5 and 2.6 in this area.
That looks like it. I'll work up a patch and submit it to the
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